HUMENIUK, J. METHODOLOGY OF ETHICAL AND PHILOSOPHICAL RESEARCH OF THE ALTRUIST CONCEPTS IN MODERN SOCIAL THEORY. Proceedings of the Kyiv Aviation Institute. Series: Philosophy. Cultural, [S. l.], v. 35, n. 1, p. 56–63, 2022. DOI: 10.18372/2412-2157.35.16539. Disponível em: http://jrnl.kai.edu.ua/index.php/VisnikPK/article/view/16539. Acesso em: 13 jun. 2026.